I get your trying to figure out Akainus more intricate political views, but at the end of the day what matters is the result of his very intentional choices. Which all revolve around making sure pirates are suppressed, and securing the interests of Marie Jois.
I am very confident many of those in fascist regimes had all sorts of quibbles with them. But at the end of the day, Akainus more than just a card carrying Marine, he's the personal bodyguard of his fascist leaders.